Hydrocarbon motor



T. J. LITLE, JR.

HYDROCARBON MOTOR.

APPLICATION man MAY 28. 1917.

.IPM/amm @et 3L 319222 2 SHEETS-SHEET l.

INVENTOR.

A TTORNE Y.

T. LITLE, JR.

HYDROCARBON MOTOR.

APPLICATION FILED MAY 28. 1917,

www@ meme@ @A 3119 m21 2 SHEETS-SHEET 2.

INVENTORI THOMAS J. LIT E, JH., BY A AMM TTORNE Y.

z nir-arr es, (am i een e that t e t a mnneenanon rennen.

Application tiled may ad,

To ali 'whom et may coo/were.'

Be it known that i, Traci/ias J. Linton, J r., a citizen oit the United States, and resident oi' letroit, Wayne County, State oi Michigan, have invented certain new and useful improvements in Hydrocarbon Motors, oi which the oil'owing is a specification.

This invention relates to* hydrocarbon niotors, and morepartioularly to improvements in means :tor providing a satistictory eaplosive mixture or gas therefor.

@ne ot the objects ci this invention is to provide@hydrocarbon motor with an improved'arrangement and disposition ot the gas conduit Aand distributing passages, wherein the impedance to the' low ot gases is re duced to a minimum.

Another object of this Vinvention is to provide improved means :tor maintaining a hydrocarbon motor induction 'pipe at `a proper temperature and to prevent condensationoi the gases therein. Another object oi this invention is to so arrange the relation of the carburetor, the induction pipe and the intake passages of a hydrocarbon motor that the iuel, air and explosive mixture are at all times travelling in the same general direction. in my preferred form, this direction is downwardly, so that the tendency to precipitate the hydrocarbon fuel gases is reduced to a inimurn, and, -on the other hand, any gas which is precipitated in the i'orm of liquid is carried on to the interior of the motor.

Another object of this invention is to provide a multi-cylinder motor with a gas carbureting and distributing system having an improved throttle, which permits a more uniform distribution of gases to various cylinders, while the motor is operating under diderent throttle conditions.

Another object of this invention is to provide a motor with a carbureting system, having means for supplementing the ordinary su-pply of air with an auxiliary source under pressure, .for increasing the high speedoperation of the `motor particularly.

Another object of this linvention is to provide a hydrocarbon motor carbureting system with improved devices for controlling the quality and quantity of the mixture produced therein.

Another object of this invention is to generally improve the construction, operation 19T?. Serial No. 'twat-$3.,`

and efficiency of iuel mixture producers and distributors for hydrocarbon motors.

rlihese and various other objects will more clearly appear from the following description taken in connection with the accompanying drawings which form'V a part of this speciiication and in which:

Figure 1 is a fragmentary end elevation, with portions in section, of a V type hydrocarbon motor and a preferred form et my carbureting and gas distributing system;

Figure 2 is a side elevation, partly in section, taken substantially at right angles to Figure 1, ci' my carbureting and gas distri uting system;y

Figure 3 is a lan view oi the central parts illustrated in Figures 1 and 2, substantially on the line 3-3 ot Figure 1, with the iioat chamber and its associated parte removed; and

Figures is a plan view oi the upper carbureting unit with the dome removed substantially on the line i-i of 1F igure 1, with a portion ot the float chamber cover broken away.

Referring to the drawings, 10 illustrates a pair of cylinder blocks suitably mounted in V relation, each having formed in its inner faces, an intake port 11` and an exhaust port l2. 1it will be noted that arranged adjacent the upwardly inclined mouths 13 of the intake ports are poppet valve members 14, which are adapted to be closed by means oi spring devices 15 and may be opened in any well known manner.

The lower or gas conducting and distributing unit which is sometimes known as a gas intake or inductionv pipe, in the illustrated Jform, comprises the substantially vertical upwardly extending long leg 15, having formed at its upper end an intake port 16 and at its lower end, a pair of laterally extending downwardly inclined distributing branches 17, the outlets of which are adapted to register with the intake ports 11 and to be detachably secured .in position as by bolts 18. Thus it will be seen l have provided a gas conducting and distributing passage of substantially Y shape, the long leg extending upwardly.

its

The conduit is provided with a heating jacket 1 9, having oppositely disposed laterally extending arms 20, each having an intake port 12 of the cylinders. rlhese arms are o'rt 21 in register with an exhaust Mae adapted to be bolted into position as v'by bolts 22; and an outlet port 23 is formed in the jacket 'at its lower 'end adjacent the dividing point 24, between the branches, i. e. at the apex of the Y. j

For the purpose of better heating the gases as they are deflected at the lower end of the conduit and distributed into the branches 17 and for preventing the forma tion of any condensation at this point, ll have provided means for maintaining a higher temperature at this point by arranging in the jacket, an electrical element which may be of any well known form, but\ which is illustrated as comprising a pair of insulating plates 25, preferably of mica, a heating element 26 and a clamping plate 27 held in position as by stud screws 28. Electric current may be led into the heating element 26 b an electrode 29 and the opposite end o the circuit may be closed byl grounding the samel as by connecting it to the clamping plate.

1 A throttle valve in the form of a sleeve 30 is adapted to be slidably arranged in the leg 15 and formed with a double V shaped lower end 31 for conforming with the apex 32 of the conduit distributing branches 17. This valve may regulate the communication ofthe lower end of the leg 15 with eachl of the distributing branches l17. The throttle valve' is adapted to be operated, as will be described hereinafter, by means`of a rod 33 which is preferably connected there.- to as by rivets 33 adjacent its upper end.

The upperend of the leg 15 is provided with a flared cup portion 34 whichis formed with a flange 35 onwhich a float chamber shell 36 is adapted to be suitably mounted. The shell 36 is provided centrallythereof with an re-entrant tubular portion forming a mixing or Venturi tube 37. A cover-'member 38 1s adapted to be arranged in position on the shell 36 and the cover, shell, and cup portion 34 are alladapted to be secured together as by bolts 39 shown in Figure 2.

It will be noted that the Vcentral portion of the cover member 38 is provided with a flared mouth 40, ada ted to be fitted over the upper end of the enturi tube and forming the intake of this tube. The outlet port 41 of the venturi being formed at its lower end. The cover 38 is formed with a fuel feed nipple 42, communicating by means of a passage 43 with a valve chamber 44 which is adapted to be controlled by means of a needle valve 45 and by means of a float 46 which is pivoted as at 47 on a lug formed integral with the shell 36. This float valve mechanism is adapted to normally maintain a predetermined level of fuel in the chamber 36 and therefore in the passages 48 which communicate therewith at their lower end and lead to a plurality of radiali arranged nozzles 49 which project lateral y into the Venturi tube 37 adjacent its upper-end. 'T

provide a number of these nozzles to which the fuel is uniformly fed for the purpose of supplying the fuel in an extremely finel spray under normal operation.

Tt will be noted that the fioa't shell 36 is provided with a number of cored outpassages,'one of which is in communication at its lower end, with the fuel and forms a stand pipe 50 in which the fuel is normally maintained at the same level as that of the fuel in the chamber proper. A plunger member 51, in the form of a piston, is adapted to be very loosely fitted in this pipe and is provided with an u wardly extending rod which is adapted to e pivoted as at 52 to one arm 53 of a bell crank, which is trunnioned as at 54 on a link 55 which is similarly trunnioned as at 56 on the shell 36. The upper end of the throttle operating rod, 33 is coupled as at 57 to the extreme outer lend of the arm 53 of the bell crank, so that'l as the throttle valve 30 is opened by lifting it upwardly, the piston member 51 is moved the opening movement ofl the throttle is comparatively rapid,'much of the fuel which rests -upon the l'upper part of the plunger 51 will be carried up to the port 58 shown in Figure 4, from which it will flow down the passage 59 and discharge into the carburetor beside the Venturi tube 37 and above the upwardly extending long leg 15. In other words, with this' arrangement the supply of fuel to the carburetor is increased, upon the rapid opening action of the throttle independently of the flow from the nozzles 49.

A dome shaped cover or shell 61 having a plurality of primary air ports 62 is adapted to be arranged over the top of the float chamber cover 38 and serves as a housing for the open end of they-Venturi tube and the throttle operating devices. It will be noted that this dome is' provided lwith a slotted portion 63 through which the arm 53 of the bell crank lever projects.

The dome shell is provided at its upper end with an opening 64 into which is adapted to be introduced a valve shell 65 which has a threaded contracted portion 66 to which may be secured a retaining collar 67. A tapered valve plug 68 having a jet portion 69 is adapted to be rotatably mounted in the chamber 65, which in turn is'arranged to be 75, rtitunnioned in the cup portion 34 of the eov 'leg' l5 as at 75 and provided with a pair of forks 76, which rest ainst the Harige It of the sleeve valve 73. the member 7 5 is provided w1 an arm 77, the extreme end of which is adapted to abut against a spring YS `which is adjustably mounted on a threaded pin 79. A rod 80 is adapted to be introduced through a cor ed out passage 81, shown in Figure-e, with its lower end resting upon a lug 82 inturned from one of the arms 76. A cam lug 83 is formed on a bow shaped spring member 83 which is arrangedon the plug 68 and secured in position by the nut 8e, in such a manner that the valve plug 68 may be turned i in one direction without admitting the pressure of air to the jet and yet moving the cam lug-.83 over the upper end of the rod 80 to maintain the lower end' against the arm 76, thus choking off the supply of auxiliary air, and for high speed work, the valve plug 68 may be moved in a reverse direction, relieving the auxiliary air valve and also admiting a supply of air under pressure to the jet 69 for leaning the mixture produced by the carburetor..

lt will be noted that the bow shaped spring 83 will always exert a spring pull on the valve plug 68, thus keeping the valve air-tight.,

With the construction which l have described, the mixture of hydrocarbon fuel and air is edected at the uppermost parts of the carbureting system, and all forces, including gravity, tend to sweep the gases downwardly into the intake port of each of the blocks with only a single turn, therefore the impedance to the flow of mixture is reduced to a minimum, and, also, it will be seen that the tendency to precipitate or condense the gases is likewise reduced to a minimum. In any event if condensation is formed, it will be carried to the lower wall of the induction pipe where the temperature is maintained comparatively high by means of the electrical heating elements. The heating effect of lthis element may be regulated in any well known manner and the flow ofeXhaust gases through the conduit jacket may be likewise controlled.

While l have described and will s eciically claim, what l deem to be a pre erred form of my invention, it will be obvious to those skilled in the art that various modihe opposite end of tications and changes may be made without de arting from the spirit and scope hereof. klaving thus described my invention, what l claim and desire to secure by Letters Patent is:4

l. 'llhe combination with an 'internal combustion engine,of a gas intake conduit hav- 'ing an upwardlyl extending main passage,

and a plurality of branches leading from said main passage adjacent the lower end thereof; means for heating said passage; and an auxiliary heating device located adjacent the dividing oint of said branches where they lead off rom said main passage.

2. The combination with an internal combustion engine, ot a gas' intake conduit of substantially Y shape comprising an upwardly extending main leg and a pair of intersecting downwardl inclined branches, and means for highly eating the apex of the Y. it'

3. The combination with an internal combustion engine, of a Y shapewjacketed conduit having an upwardly extending main leg provided with an intake port at its upper end, and with a pair of laterally extending downwardly inclined branches at its lowerl end, and means for providing a greater heating of the conduit walls adjacent the dividing point of said branches.

l. rl`he combination with an internal combustion engine, of an intake conduit comprising: a substantially vertical main leg having an intake port at its upper end, and a plurality of laterally extending downwardly inclined branches, said conduit being provided with a heating jacket, and means for maintaining ,a relatively higher temperature in said conduit adjacent they dividing point of said branches. y

5. The combination with an internalcombustion engine, of an intake conduit `comprising a substantially vertical main leg having an intake port at its upper end, and a plurality of laterally extending downwardly inc-lined branches, said conduit being pro-v vided with a heating jacket, means for malntaining a relatively hi `her temperature in said conduit adjacent t e dividing point of said'branches, and an electrical heating-element arranged adjacent the dividing point of said branches.

6. The combination with an internal combustion engine, of a gas intake conduit comprising a substantially vertical upwardly eX- tending main leg having an intake port at its upper end and a pair of laterally extending downwardly inclined branches, and valve means for regulating the communication of said leg with said branches.

7. The combination with an internal combustion engine, of a gas intake conduit comprising a substantially vertical upwardly eX- tending main le having an intake port at its upper end an a pair of laterally extend- .ing downwardl inclined branches, and a valve member or varying the communication of each of said branches with said main g8. The combination with an internal combustionengine, of a gas intake conduit comprising a substantially vertical upwardly extending main leg having an intake port at its upper end and a pair of laterally extending downwardly inclined branches, anda sleeve valve member for varying the communication of the lower end of said leg with the upper end of each of said branches. 9. The combination with an internal combustion engine, of a gas intake conduit comprising a substantially vertical upwardly extending main Ie having an intake port at its upper end ancgl a pair of laterally extending downwardly inclined branches, and a reciprocable sleeve valve arranged in said leg and adapted to vary the communication of the lower end thereof with the upper end ofeach of said branches.

10. The combination with an internal combustion engine, of a gas intake conduit comprising a substantially vertical upwardly extending main leg having an intake port at its upper end and a pair of laterally extending downwardly inclined branches, and a sleeve valve slidably arranged in said leg and having a curved lower end for varying the communication of the lower end of said leg with each of said branches.

11. The combination with an internal combustion engine comprising a pair of cylinder blocks arranged in V relation and each havin an intake port and an exhaust port, of a etachable conduit arranged therebetake port. at its upper end and a pair of laterally extending downwardly inclined branches at its lower end, the outlet of each of said branches bein of said inlet ports, said conduit being pro.

vided with a jacketv having laterally extending intake ports each connected with one of said exhaust. ports, said jacket also having an outlet port formed therein adjacent the dividing point of said branches.

12. The combination with an internal combustion engine, of a gas intake conduit comprising a substantially vertical upwardly extending main leg, having an intake port at its upper end and a pair of laterally extending downwardly inclined branches connected at its lower end, said conduit bein vided with a jacket having means' or introducing exhaust gas therein adjacent the upper end of said leg and for discharging it lfrom said conduit adjacent. the dividing point of said branches.

13. rlhe combination with an internal combustion engine, of a gas intake conduit com-` connected with one introducing exhaust `gas therein adjacent the 

